I have the BR600 is great blower when it works. The gas cap may be a cheap item, but the blower is useless without it. It let me down big when I was in a rush. 25 minutes to cut a lawn, and 2 hours trying to get a gas cap on the blower...yes 2 hours...I gave up.. Stihl needs to address this problem, I'm reading all over the web about people with Stihl products and the cap leaking. Unbelievable something so simple was made so complicated.